All Grain brewing is confusing. It says use 1.25 quarts of water per pound of grain you're using for strike water. I am using 10.5 pounds of grain for my recipe (using a kit for my first AG batch) which is roughly 3.28 gallons of water. Then for sparge you use 1/2 gallon of water per pound of grain which makes 5.25 gallons. That makes 8.53 gallons of water for a 5 gallon batch? The system I am using used 10 gal coolers. I do my sacch rest at 154 and mashout at 170. So I have to add a certain amount of water to my HLT to heat it up to mashout temp. This is harder than I thought. I think I am going to need some supervision for my first batch.